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WINTER
POPULATION MONITORING |
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Week
5: Jan 31 - Feb 6, 2005 |
Welcome
to the McGill Bird Observatory weekly report. Click
here for a complete listing of our archives. Comments or questions are welcome at mbo@migrationresearch.org.
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PICTURE OF
THE WEEK: |
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February 6,
2005: This second-year Black-capped Chickadee became our
first bird captured
in 2005. It was banded at MBO on September 23, 2004.
(Photo by Marcel Gahbauer)
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THIS
WEEK |
WINTER
TOTAL |
YEAR
TOTAL |
SITE
TOTAL |
| #
birds (and species) banded |
12
(5) |
206
(9) |
12
(5) |
930
(48) |
| #
birds (and species) repeat |
8
(1) |
83
(9) |
8
(1) |
186
(17) |
| #
birds (and species) return |
-- |
-- |
-- |
2
(1) |
| #
species observed |
17 |
30 |
19 |
136 |
| #
net hours |
7.0 |
59.0 |
7.0 |
981.5 |
| #
birds banded / net hour |
171.4 |
347.5 |
171.4 |
94.7 |
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Note: table does
not include nocturnal banding (owls) |
Bander-in-charge:
Marcel Gahbauer
Assistants: Christina Donehower, Marie-Anne Hudson
Notes:
Most of January was very cold - too much so for us to attempt any
banding. Temperatures have warmed up nicely this week, and finally
on Sunday both weather and time availability coincided to allow us our
first banding opportunity of 2005. Not surprisingly, the first bird
caught was a Black-capped Chickadee. However, we did also catch half
a dozen unbanded chickadees, suggesting that the flock has changed
somewhat in composition since our last banding efforts before Christmas,
when it seemed that the vast majority of the local birds had been
banded. Rounding out the birds banded today were small numbers of
American Goldfinch, Slate-coloured Junco, American Tree Sparrow, and Blue
Jay. The highlight of the day was a brief glimpse of a Pine Grosbeak
in the trees behind the feeders - our 136th species for the site.
Also of note, a Brown Creeper in the woods north of the cabin, a Deer
Mouse under the feeders, and the distinct tooth-marks on our birdseed bin
of a mystery rodent.
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